If you like shimmering objects, you'll like making your own "gemstones."

Here’s how

1. Cover your work area with newspaper.

2. Scrub the rocks with soap and water. Rinse them well and let them dry completely.

3. Fill the pie tin with water about 3/4" (2 centimeters) deep.

4. Let just one drop of nail polish fall into the water. The drop will spread out over the surface of the water, making a cellophane-like film.

5. Holding the side of the rock with your fingertips, roll it slowly across the bottom of the pie tin.

6. Put the rock on the newspaper. Don't touch it for several hours, until it's completely dry.

7. To add sparkle to another rock, skim leftover nail polish from the water with a paper towel, then repeat the process.

Use your iridescent rocks as paperweights or just dazzle your friends with the "precious stones" you made.

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Text by Kathy Kranking
Art by Dave Joly